ASM HydraSynth, Digital Wave Morphing Keyboard Synthesizer

Condition:  Brand New
Warranty:  1 Year Warranty
Delivery:  Free Delivery

  • 49 Polyphonic velocity sensitive keys with aftertouch
  • 3 Oscillators
  • Wavemorphing, pick 8 waves and morph from one to the next
  • Filter one has 11 different modes, Filter two is a continuous sweep, low, band or high pass
  • 5 LFO's, 5 DAHDSR envelopes
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Estimated restock is 10-20 days

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Condition:  Brand New
Warranty:  1 Year Warranty
Delivery:  Free Delivery

  • 49 Polyphonic velocity sensitive keys with aftertouch
  • 3 Oscillators
  • Wavemorphing, pick 8 waves and morph from one to the next
  • Filter one has 11 different modes, Filter two is a continuous sweep, low, band or high pass
  • 5 LFO's, 5 DAHDSR envelopes

Product Details

Product: ASM HydraSynth, Digital Wave Morphing Keyboard Synthesizer

SKU: DDJ3777

Condition:  Brand New
Warranty:  1 Year Warranty
Delivery:  Free Delivery

ASM HydraSynth Keyboard Digital Poly Synth 

The ASM HYDRASYNTH keyboard is both a sound designers dream synth as well as a performing musicians ideal. The sound engine is designed for maximum flexibility. At the same time, we designed the user interface in a way to allow you to edit the patch quickly with a minimal amount of paging and many workflow shortcuts.

​Utilizing an advanced wavetable synthesis engine, 3 Oscillators, dual Wave Mutators and 2 filters that can be configured in series or parallel, the tone generating capabilities are unmatched.

As for the performance capabilities, The HYDRASYNTH keyboard has our proprietary Polytouch™ keybed that offers polyphonic aftertouch over each note, giving you the type of expressive control found only in certain vintage synths.

​Add to this a 4 octave ribbon controller and ergonomically designed pitch and mod wheels and you have expression and control that is not equaled in any other hardware synthesizer on the market… Today or ever.

​Wavemorphing is a feature usually found on synths with preset wavetables. Creating user wavetables is arduous or downright impossible. Unlike most wavetable synths, our oscillators 1 & 2 have our WAVELIST mode. This mode allows you to pick and choose 8 waves, from our bank of 219, arrange them in the order you want, and then morph from one to another.

Oscillators 1 & 2 are routed into our MUTATORS. The Mutators allow you to modulate, bend and sculpt the sound in new (and old) ways.

​Each MUTANT allows you to choose from the following processes:

  • FM-Linear - for making classic FM sounds. Choose multiple FM sources, including external inputs.
  • Wavestack™ - creates 5 copies of the incoming sound and allows you to set a detune amount.
  • Hard Sync - This gives you those classic hard sync sounds. Try hard syncing a morphing wavetable for some fun.
  • Pulse Width - This will pulse width modulate ANY input sound. 
  • PW - Squeeze - This is a different form of pulse width mod that creates a smoother sound.
  • PW-ASM - this mode divides the incoming wave into 8 slices and allows you to set how much pulse width mod will happen in each section.
  • Harmonic Sweep - this will sweep the harmonics of the incoming sound.

The Mutants can also generate its own waveforms in both FM and Sync modes so that you do not have use another oscillator... Of course, the routing is flexible so you can choose the other oscillators as mod sources if you like.

  • 49 Polyphonic velocity sensitive keys with aftertouch
  • 3 Oscillators
  • 219 Single cycle waveforms
  • Wavemorphing, pick 8 waves and morph from one to the next
  • Modulate, bend and sculpt waveforms in new ways
  • Flexible mixing and filter routing
  • Filter one has 11 different modes
  • Filter two is a continuous sweep, low, band or high pass
  • 5 LFO's
  • 5 DAHDSR envelopes
  • Modulation matrix for both CV and MIDI
Physical spec

Metal Chassis
Steel top and bottom
Aluminum side panels
PolyTouch© Keybed

Polyphonic aftertouch
4 octave (67 cm, 26.4”) Ribbon controller

Pitch bend mode
CC control mode – modulation source
Theremin mode - triggers envelopes and plays pitch
Continuous pitch or choose from multiple scales
5 banks of 128 patch memories

CV gate input and oututs
Support multiple CV/GATE standards
1v per octave +/-5V
1V per octave 0-10V
Hz to Volts +/-5V
Hz to Volts 0-10V
V-trig, S-trig
3V, 5V, 10V
Mod In/Out range
+/5V, 0-10V, 0-5V, 0-1V
Clock in and out
1PPS, 2PPQ, 24PPQ, 48 PPQ
Clock Voltage - 3v, 5V, 10V
Voice overflow mode for expanding voices with another Hydrasynth
Expression pedal input

Sustain pedal input
Polarity sensing input​
DC input jack

USB port
Supports USB MIDI In/Out
80 x 35 x 10.3 cm
(31.5 x 13.78 x 4.05 inches)

10kg (22.05 lbs)

Sound path spec

8 Voice Advanced Wavetable synthesis

2 Wavemorphing Oscillators
219 single cycle waveforms
User wavetables - 8 user selectable ‘wavelist’ per osc to build user wavetables
Every osc and patch can have its own user wavetable
WaveScan parameter for modulating through wavetables.
Keytracking – 0-200%
+/- 3 octave tuning range
1 fixed Wave OSC
219 single cycle waveforms
+/- 3 octave tuning range
Keytracking – 0-200%
Dual Mutators per oscillator
FM – Linear FM
Selectable Modulator source
Built in Sine & Triangle, OSC1, OSC2, OSC3, Mutators A, B, C, D, Noise gen, Ring Mod, External Mod 1&2 input.
WaveStack – Generates 5 detuned waves from input source. Detune amount.
Pulse Width Mod – Adjust pulse width of ALL waveforms.
PWSqueeze – Compresses the center section of the waveform. Differnnt type of PWM
PW-ASM – 8 User adjustable wave squeeze/stretch points.
Hard Sync – gives that classic sync sweep sound.
Selectable Sync input source.
Harmonic Sweep – will scan through the harmonics of the incoming sound.
Dry/Wet mix to blend the original OSC source.
Noise Generator
White, Pink, Brown noise sources
Ring modulator
Selectable input sources
OSC1, OSC2, OSC3, Noise, All Mutator outputs, External Mod ½ in.
Depth control
Sound source mixer
Mix the following sources - OSC1, OSC2, OSC3, Noise, and Ring Mod.
Panning for each source
Filter routing mix
Solos for each source (solo status is saved in the patch)
Two Filters
Series or parallel routing
Filter 1
12 & 24db modern ladder (compensated)
12 & 24db vintage ladder (uncompensated)
Threeler HP, LP
Low Pass Gate
Vocal filter
Multiple vowel order parameter
Formant parameter
Filter 2
Continuously Variable Lowpass-Band pass-High pass (Oberheim SEM style)

Modulation spec

5x Low Frequency Oscillators
10 static waves
Sine, triangle, Square, Saw up, Saw down, S&H, Low random, Noise, Pulse width 25%, Pulse Width 12.5%.
Step Wave – 8 steps that the user can set (like a step sequencer).
Step smoothing
Step glide
Clock sync
Starting phase
Start delay
Fade in
Master output gain
Trigger modes – mono, poly, free
One shot mode
5x Envelope Generators
6 stage DAHDSR envelopes
Delay, Attack, Hold, Decay, Sustain, Release
Slope curves for ADR stages
Variable from full exponential to full logarithmic
Tempo or Time option for setting length of each stage.
Looping of AHD stages for creating LFO types of modulations.
Trigger modes – Legato, Reset, Retrigger
Matrix modulation
32 slots for source-destination mod routings with amount
Modulation matrix slots can be mod destinations
8x Macro knobs and buttons
Each macro knobs allows positive and negative of up to 8 destination controls
Arp parameters can be modulation destinations.
Up, down, up/down, Up&down, random, note order, chord, pattern
Range, 1,2,3,4
Play order
Up, down, up/down
Gate time
Ratchet – repeats notes
Chance – sets how often the ratchet takes place.

Effects spec

Pre-effects – before Delay and Reverb
Chorus, Flanger, Rotary, Phaser, Lo-Fi, Tremolo, EQ, Compressor (with side chain)
Tape, Ping-pong, Analog, PitchShift, Reverse, Filter delay
Hall, Room, Plate, Cloud
Post-effects – after Delay and Reverb
Chorus, Flanger, Rotary, Phaser, Lo-Fi, Tremolo, EQ, Compressor (with side chain)

UK Deliveries

We offer free delivery on all of our items (UK mainland only) please see details below.

Destination Delivery Times Cost
UK Mainland Economy (only available for orders over £70) 3-5 Working Days* Free of charge
UK Mainland Express Next Day* £4.99
UK Mainland Saturday and Sunday Saturday or Sunday £14.99
Northern Ireland, Scottish Highlands 2 Working Days* £11.99
Scottish Islands, Channel Islands, Isle of Man, Isles of Scilly 2 Working Days* £14.99

*Applies to in stock items. Orders placed after 5pm will be dispatched the following working day, next day delivery does not include Saturday or Sundays. Some services are only available to UK mainland addresses.

Jersey and Guernsey are also VAT exempt, so 20% will automatically be knocked off when selecting your country in the basket or checkout.

Pre 10am, 12am and named day delivery options are available in the basket, simply enter your postcode for an accurate price. Please note there is a surcharge for individual, very heavy items over 30kg. This will be applied in the basket.

European Deliveries

We ship to most European destinations, simply choose your country and the correct price will show up in the basket.

Delivery times range from 2-4 days, 4-9 for remote areas.

A quick glance at some of our rates...

Destination Delivery Times Cost
Republic of Ireland, Belgium, France, Germany, Italy & Netherlands 2-4 Working Days £14.99
Spain, Austria, Denmark, Hungary 3-5 Working Days £19.99

Rest of the World

We can ship anywhere in the world, if you are outside of the EU we will knock 20% VAT off the price, rates depend on weight so please get in touch for an accurate price, [email protected]

Read more about our delivery here.


Our returns system is easy, you have the right to cancel an order up to 14 days, please check our full returns policy here.

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